After someone has made a claim, the second second speaker uses this phrase to express agreement, excitement, and possibly even non-chalance. Many linguists have placed the origins of this phrase near Pawtucket, RI.

Bro 1: Yo dawg, I hear there is a party at the local discotech. We should totally hit that thing up and scout for some females...

Bro 2: Yeah man. You right, you right.

Hot Girl: I really like the movie The Notebook. Such a good movie right?